Records for Rapid City Area, South Dakota (RAPthr) on 09-16
Record Highs
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1: 95°F (1961)
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2: 95°F (1949)
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3: 94°F (2002)
Record Lows
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1: 30°F (1965)
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2: 32°F (1971)
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3: 35°F (1959)
Lowest Highs
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1: 62°F (1948)
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2: 59°F (1946)
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3: 58°F (2018)
Highest Lows
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1: 36°F (1965)
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2: 42°F (1973)
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3: 45°F (1959)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 62.5°F
Average high is 74.1°F
Average low is 50.8°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.78" (1959)
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2: 0.61" (1967)
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3: 0.23" (1968)
Precipitation data from 1942 to 2022.